Speech synthesis system

Details Speech synthesis system Speech synthesis system

1982-10-04

1986-01-21

Kemeny, E. S. Matt

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

G10L 100

Patent

active

045661170

ABSTRACT:
A speech synthesis system uses a programmable digital divider to generate desired formant frequencies. The divide factor is controlled by an MPU. The output of the divider is passed through a sinewave shaper and then through an electronically controlled amplitude amplifier to provide an audio output. The system is based upon the realization that alternating between two formant frequencies at the pitch rate generates a sound comparable to generating two formants simultaneously and adding algebraically.

REFERENCES:
patent: 3102165 (1963-08-01), Clapper
patent: 3830977 (1974-08-01), Dechaux
patent: 4163120 (1979-07-01), Baumwolspiner
Flanagan, J., Speech Analysis, Synthesis, Perception, Springer-Verlag, N.Y., 1972, pp. 344, 370.

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